Case for preserving food



(No Model.)

J. J. HOYT GA$E FOR PRESERVING FOOD.

No. 257,010. Patented Apr.25, 1882.

[five 71/60 7.

%7nea.ses.

N PETERS PholnLllm UNITED STATES PATENT OFFICE. A

JONATHAN J. HOYT, OF-GHELMSF 0RD, MASSACHUSETTS.

CASE FOR PRESERVING FOOD.

SPECIFICATION forming part of Letters Patent No. 257,010, dated April 25, 1882.

Application filed September 1, 1881. (No model.)

To all whom it may concern:

Be it known that I, JONATHAN J. Horn, of Ghelmsford, in the county of Middlesex and Commonwealth of Massachusetts, have inven ted certain new and useful Improvements in Cases for Preserving Food, of which thefollowing is a specification.

My invention relates to means of protecting the contents of such case from the air, of securing the parts of such case together, and of preventing breakage of such parts.

In the accompanying drawings, Figure l is a vertical central section of a case embodying my improvements. Fig. 2 is a similar section of a part of a flanged ring or clamp and bolt. Fig. 3 is an oblique view of the case. Fig. 4 is a horizontal cross-section of the same.

The body E and cover D ofthecaseare pressed out of opaque glass (ground together, as hereinafter described) of such a color as to exclude the aetinic rays of light which cause chemical decomposition and changes. To avoid such decomposition and changes in the food designed to be preserved in said case, I have found that the color of the glass should be deep orange-that is, the color should contain a proportion of yellow and a proportion of red.

The bottom of the cover D is provided at its outer edge with an annular flange, O, or slight projection downward, justlarge enough to receive loosely the top of the case E.

Apaper gasket, D, saturated with parafflnewax is placed between the top of the body E and the bottom of the ooverD within the flange C, so that when the cover is pressed down upon the body the air is entirely excluded therefrom. The gasket D is prepared by dipping it in melted paraffine-wax and allowing it to drain and cool, and when so prepared is tasteless, ordorless, and water-proof, is compressibio, and when compressed. between the body and cover is air-tight and prevents a breakage of the parts between which it is interposed. This gasket may be used in any place where it is not exposed to heat.

The top of the cover and the bottom of the body have each annular flanges 0 G which project beyond the vertical walls of the case, and these flanges are each provided with notches a: to admit the bolts F. These notches m allow said bolts to be placed nearer to the vertical walls of the case, and thereby make the whole device less bulky, and they also serve to hold the body and cover while being ground to fit each other.

The operation of grinding is performed by placing the cover, bottom side up, on ahorizontal table, where it is held in place by wooden pegs projecting upfrom said table, while the body, also bottom side up, rests upon the cover within the flange G, and is turned by a vertical revolving fork, which enters the notches in said body.

Thegrinding material used may be sand and water, or emery and oil, or emery and spirits of turpentine.

I do not desire or attempt to make a joint between the outside of the vertical walls of the body and the inside of the flange C; but I make the joint between the top of such body and the bottom of said cover within said flange, so that if the body of the case be entirely filled before the cover is applied the air will be entirely excluded, inasmuch as the air can escape until the pressure of the bolts F has been applied, as hereinafter described.

The inside of the body is slightly larger at the top than at the bottom, and this allows the case to be filled with greater ease, allows its contents to be removed entire, and also admits of the casebeing washed or cleansed with much greater facility than is possible in a jar having a contracted neck.

Circular protectors, of wood or other slightly elastic material, B B, are placed one above the cover and the other below the bottom of the body, and outside of the protectors B B are metallic flanged rings A A, which rest upon and over the outer edges of the protectors, These rings A A, besides acting with the bolts F as clamps, guard the edges of the protectors and case, and with the bolts protect the walls of the case from blows. These ringsare drawn toward each other, thereby pressing the protectors upon the glass ends of the case and pressing the cover down upon the body, or rather upon the gasket D, which rests upon the body, by means of screw-bolts F,whicl1 pass through the upper ring, A, and within the notches 00 0c, and screw into the lower ring, A, as shown in Fig. 2. These bolts are provided with beads like the head of a common woodscrew, the upper ring being countersunk to receive the heads, and the heads of the bolts are slotted on top, (see Fig. 3,) so that the bolts may be turned to fasten or open the case by 5 means of an ordinary screw-driver.

It will be seen that the top of the cover and the bottom of the case or body have circular depressions G G, so that the whole force of the pressure caused by the bolts and rings is ap- 1o plied near the edges of the ends of the case and in the lines of the vertical walls of the case, so also that a blow on the most exposed part of the protector is not communicated to the central or weakest parts of the ends.

15 I claim as my invention- 1. The combination of the glass case D E,

the protectors B B, the ring-clamps A A, and screw-bolts F, as and for the purpose specified.

2. The combination of the glass case D E, provided with notched flanges C 0 the ring- 20 clamps A A, and screw-bolts F, as and for the purpose specified.

3. In combination with a glass case, D E, provided with notched flanges O (3 as herein described, the ring-clamps A A, provided with 25 vertical annular flanges, and the screw-bolts F, as and for the purpose specified.

JONATHAN J. HOYT.

Witnesses:

ALBERT M. MOORE, .HORATIO E. WoRoEsrrER. 

